<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>带缩略图的焦点图切换效果</title>
    <link rel="stylesheet" href="index.css">
</head>
<body>
    <div class="container">
        <ul>
            <li><img src="./images/1.jpeg" alt=""></li>
            <li><img src="./images/2.jpeg" alt=""></li>
            <li><img src="./images/3.jpeg" alt=""></li>
            <li><img src="./images/4.jpeg" alt=""></li>
            <li><img src="./images/5.jpeg" alt=""></li>
            <li class="big-img"></li>
            <li class="frame"></li>
        </ul>
    </div>
</body>
</html>